Toothbrush



FIG. 1 is a back, left side perspective of a toothbrush embodying my new design.

FIG. 2 is a front elevation view thereof.

FIG. 3 is a rear elevation view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The edges of the surface shading on the handle, the broken lines immediately adjacent the surface shading on the rear and at the base of the head, and at the base of the neck represent the bounds of the claim and the broken lines showing bristles, the area on the rear of the head, the neck, and the remainder of the handle illustrate portions of the toothbrush that along with said boundaries form no part of the claimed design. 

The ornamental design for a toothbrush, as shown and described. 